Two explosions were reported in the Bellshire Estates neighborhood Friday afternoon. A homeowner told Nashville's News 2 someone placed an explosive in his mailbox in the 3900 block of Oxbow Drive around 2:30 p.m.A second explosion took place down the street around the same time. Dan Clemmons, whose mailbox was heavily damaged, said it sounded like dynamite exploding. No injures were reported. No suspects are in custody.